Berlin 2012 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
DS: Fachverband Dünne Schichten
DS 44: Poster IV: Thin film photovoltaics; Organic electronics and photovoltaics (jointly with CPP, HL, O); Organic thin films; Trends in atomic layer deposition (Focused session)
DS 44.40: Poster
Freitag, 30. März 2012, 09:30–12:00, Poster E
Structural properties of molecular mixtures of pentacene and diindenoperylene — •Antje Aufderheide1, Katharina Broch1, Jiří Novák1, Alexander Hinderhofer1, Roberto Nervo2, Rupak Banerjee1, Alexander Gerlach1, and Frank Schreiber1 — 1Universität Tübingen, Institut für Angewandte Physik, Auf der Morgenstelle 10, 72076 Tübingen, Germany — 2ESRF, 6 Rue Jules Horowitz, BP 220, 38043 Grenoble Cedex 9, France
We investigate mixtures of pentacene (PEN) and diindenoperylene (DIP) with different mixing ratios using x-ray reflectivity (XRR) and grazing incidence x-ray diffraction (GIXD). With a multilayer model we fit the reflectivity data including the first-order Bragg peak. Furthermore, we determine the coherent island size from the GIXD peak widths. Using the results of the in- and out-of-plane measurements we determine the ordering behavior which changes with the mixing ratio [1] and compare it with mixtures of similar molecules [2,3]. A first approach to a phenomenological description of the mixed film structure is made.
A. Aufderheide et al., in preparation
[2] A. Hinderhofer et al., J. Chem. Phys., 134, 104702
(2011).
[3] J. P. Reinhardt et al., in preparation